Soil contamination by direct disposal of reverse osmosis reject water onto the ground in the Chronic Kidney Disease of unknown etiology (CKDu) prevalent areas

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dc.contributor.authorJayathilaka, PAVG
dc.contributor.authorGunawardana, WB
dc.contributor.editorHettiarachchi, MTP
dc.date.accessioned2022-05-18T10:40:42Z
dc.date.available2022-05-18T10:40:42Z
dc.date.issued2016-12
dc.description.abstractReverse Osmosis (RO) units have been installed in areas where Chronic Kidney Disease of unknown etiology (CKDu) prevails to provide good quality drinking water. At present, RO reject water is directly discharged onto the ground, which may cause potential soil contamination. This research investigated the possibility of soil contamination and their levels due to direct disposal of RO reject water onto the ground. Water samples (RO permeate and reject) and soil samples from disposal sites and reference sites were collected and analyzed for various constituents (Ca2+, Mg2+, Na+, K+, F-). RO reject water showed high concentrations of Ca2+, Mg2+, Na+, K+ and F- ions. Analysis of soil samples from RO reject water disposal sites showed high concentrations of Ca2+, Mg2+, Na+ and K+ compared to the reference sites and optimum levels for healthy growth of plants. This was mainly attributed to the direct discharge of RO reject water rich in such constituents onto the ground. In conclusion, soil contamination was observed due to direct discharge of RO reject water onto the ground, which may lead to reduction of soil fertility and retarded plants growth in the long run.en_US
dc.identifier.citationJayathilaka, P.A.V.G., & Gunawardana, W.B. (2016). Soil contamination by direct disposal of reverse osmosis reject water onto the ground in the Chronic Kidney Disease of unknown etiology (CKDu) prevalent areas. In M.T.P. Hettiarachchi (Ed.), Proceedings of the Civil Engineering Research Symposium 2016 (pp. 49-53). Department of Civil Engineering, University of Moratuwa.en_US
dc.identifier.conferenceCivil Engineering Research Symposium 2016en_US
dc.identifier.departmentDepartment of Civil Engineeringen_US
dc.identifier.emailbuddhika@uom.lken_US
dc.identifier.facultyEngineeringen_US
dc.identifier.pgnospp. 49-53en_US
dc.identifier.placeKatubeddaen_US
dc.identifier.proceedingProceedings of the Civil Engineering Research Symposium 2016en_US
dc.identifier.urihttp://dl.lib.uom.lk/handle/123/17860
dc.identifier.year2016en_US
dc.language.isoenen_US
dc.publisherDepartment of Civil Engineering, University of Moratuwaen_US
dc.subjectReverse osmosis
dc.subjectSoil contamination
dc.subjectAnions and cations
dc.subjectSoil analysis
dc.subjectWater analysis
dc.titleSoil contamination by direct disposal of reverse osmosis reject water onto the ground in the Chronic Kidney Disease of unknown etiology (CKDu) prevalent areasen_US
dc.typeConference-Full-texten_US

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